Created attachment 259538 [details] Patch for Makefile MagickCore-config, MagickWand-config and Magick++-config in ImageMagick6-6.9.13.23,1 return broken responses as below: -- % MagickWand-config --cflags Package MagickWand-6 was not found in the pkg-config search path. Perhaps you should add the directory containing `MagickWand-6.pc' to the PKG_CONFIG_PATH environment variable Package 'MagickWand-6' not found -- This is because of adding reference for PKG_CONFIG_PATH environment variable in MagickWand-config. I think we can work around this problem by removing PKG_CONFIG_PATH environment variable. This method is also used in graphics/ImageMagick7.